Gaiter of springs



. nal half of the spring is enclosed in a protec- Patented pr. 24, 1923.

UNITED STATES-f HENRI STAUB, OFvMANOIR DU CYGNE, COPPET, SWITZERLAND.

GAITER OF SPRINGS.

Application led August 1, 15.122. Serial No. 578,959.

To all whom it concern: A I Be it known that I, HENRI STAUB, a. c 1t1- zen of the Republic of Switzerland, residing at Manoir du Cygne, Coppet, Canton of` Vaud, Switzerland, have invented certain new and useful Improvements inor Relating to the Gaiters of Springs, of which the following is a specifica-tion, reference being had therein to the accompanying drawing.

lt has been proposed to enclose leafsprings of motor car suspension systems in protective covers of soft material, the object of which is to protect lubricant ,introduced between the separate spring layerfsfrom contact-or mixing with dust, waterland mud and to keep it in the spring. It was also sought to cause the protective cover to lie tightly lagainst the spring over its entire length. It

has been found, however, that the spring is thereby obstructed in its movements and that lubricant, which has been introduced, can* run out of the cover.

These disadvantages are prevented according to the present invention, which relates to a protective covering for'leaf sprlngs, more particularly of motor carsuspension systems,

Vby a space being left between the. protective cover and the spring, so that the protective cover/encloses a chamber'` for the reception of a lubricant for .lubricating the spring.

`'llhe provision ofan actual chamber for thelubricant has the object of leaving the spring full freedom of movement, while en-v closing it hermetically, and to lubricate it in the most thorough manner by immersion, for instance in an oil bath, so as to reduce to a minimum the friction between the various layers of the spring. v p

In the accompanying drawing a construetional form of the invention is shown by way of example.

Fig. 1 is a perspective view of a leaf' spring itted with the protective cover according to the invention.

F ig. 2 shows` a cross-section on of.

Fig. l to an enlarged scale.` v

Fig. 3kis a detail modication of Fig. 2

l fis the spring built" up of layered .leaf

springs, about halt` the length of the springbeing shown'inFigure 1. Each longitudi` tive cover 2, one end of which reaches nearly tothe eye of the spring andthe otherend nearly to 'the'point 01E,` connection of the allows neither water nor dust to penetrate.

Between the said ends along each of the corners formed by the spring ,in cross-section there extends an insertion 5 of material, which `is permeable t0 lubricant. By the provision of the insertions 5 hollow spaces are formed round about the spring, providing storage spaces for the lubricant, which consists for instance of oil. These hollow spaces may with advantage be filled withl a kind of oil sponge. At its overlapping longitudinal edges on the-upper side of the spring the protective cover is closed by closing means 7 which facilitate the attachment and removal of the cover and which in the example shown are represented by a hook and lace fastening.v By this closure being at the top, provision is made for preventing any leakage of the lubricant from the cover at the under side of the spring and for preventing water, sand and the like from entering the cover from below or from the side,

when the-vehicle is being cleaned by a.v jet connecting stirrup for the spring, which partially projects out of the cover; the lubricant is, however, preventedfrom escaping at thisplace as well, owingto suitable pack.

ing of the apertures provided in the coverv for the stirrup.

` When the chamber enclosed by the cover 'is'lled with oil, the spring will beimmersed v in an oil' bath, in which the 's ring can move .v

freely, Oil will flow round a out the spring and will penetrate into all t'he interstices of the spring, so that by reducing the friction as far as `possible,the'greatest eiciency of the sprin is secured. f

'lhroug fitting a closable outlet in the lowest partv of the cover, provisioncan be made for readily renewing the oil bath. Fresh oil is poured in throu'gh the inlet nipple 8 ttted'in the highest part of the cover. The fresh oilfthen slowly flows from the inlet yto the outlet. rlhe renewal ofthe oil bath may be eiected from time tp time or conlll@ koop the @over at o 61E- siones f om 'the spzmg so hat'tho former @ociosos o chamber fol ocopton of o 'ubcanh S3. new article of manufaozue compsng a protective covez for leaf springs, closing, means for said cover provided om 5m upper side ofthe spug for its ready att-ooi@ .mont and. removal, angl insertions provided;

zhocorners fomed by ho spying in ccoi section and adapted o keepy the cover at r distance from the spring so 'tm the foto ,omoses sa chamber foi' ibo reoapon of 5^. 

